Which of the following s-block elements is the least reactive?
Practice Questions
1 question
Q1
Which of the following s-block elements is the least reactive?
Lithium
Sodium
Potassium
Rubidium
Lithium is the least reactive among the alkali metals.
Questions & Step-by-step Solutions
1 item
Q
Q: Which of the following s-block elements is the least reactive?
Solution: Lithium is the least reactive among the alkali metals.
Steps: 5
Step 1: Understand what s-block elements are. They are found in the first two groups of the periodic table, which include alkali metals and alkaline earth metals.
Step 2: Identify the alkali metals in the s-block. These are lithium (Li), sodium (Na), potassium (K), rubidium (Rb), cesium (Cs), and francium (Fr).
Step 3: Know that reactivity increases as you move down the group in the periodic table for alkali metals.
Step 4: Compare the reactivity of lithium with other alkali metals. Lithium is at the top of the group, while the others are lower down.
Step 5: Conclude that since lithium is the highest in the group, it is the least reactive compared to the other alkali metals.
